DAVID CAMERON was challenged yesterday to use his European Union veto to stop the NHS being privatised in the “monster” US trade deal. 

The government could be sued by US health vultures circling the NHS if it blocks their bid to privatise services as part of the Transatlantic Trade and Investment Partnership (TTIP).

But the deal being hammered out in secret by US and EU officials must gain unanimous agreement from all 28 EU member states.

And Unite said Mr Cameron must use his power of veto to exempt the NHS from the deal. 

The union’s general secretary Len McCluskey said: “David Cameron has shown that he’s willing to go to Europe to defend bankers’ bonuses and use his veto, now he must use his powers to defend our cherished NHS.

“Unless the PM acts, bureaucrats in Brussels and Washington will make the sell-off of our NHS irreversible.”

The call comes after Mr Cameron was embarrassed by his failed bid to prevent Euro federalist Jean-Claude Junker from becoming European Commission president. 

Unite delegates declared their “outright opposition” to TTIP in a debate on Monday.